Patents Examined by Waqaas Ali
  • Patent number: 11123691
    Abstract: The present invention addresses the problem of providing a separation membrane element with which it is possible to stabilize the separation removal performance when a separation membrane element is operated. The present invention is a separation membrane element provided at least with a collecting pipe, a separation membrane, a feed-side channel material, and a permeation-side channel material, wherein: the feed-side channel material is configured from a fibrous column X configured from a plurality of fibrous materials A arranged in one direction and a fibrous column Y configured from a plurality of fibrous materials B arranged in a different direction to the fibrous column X; the fibrous materials A intersect the fibrous materials B to form intersections; and the fibrous materials A and/or the fibrous materials B have a small-diameter part and a large-diameter part between adjacent intersections in a section plane parallel to the respective fibrous column.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: September 21, 2021
    Inventors: Hiroho Hirozawa, Takuji Nishioka, Yoshiyuki Kitamura, Yutaro Suzuki, Fuka Ono
  • Patent number: 11117812
    Abstract: A method and apparatus for conditioning the settled solids in the bottom of a wastewater filtration tank to reduce the acidification of the sludge and prevent the excessive growth of undesirable biological growth.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: September 14, 2021
    Assignee: Aqua-Aerobic Systems, Inc.
    Inventor: Terence K. Reid
  • Patent number: 11091895
    Abstract: A removable and replaceable end cap that selectively lockingly engages a seat ring of a filter housing. The end cap may include a flange that compresses a gasket member between the end cap and the seat ring to form a fluid tight seal therebetween. The end cap may include cam locking grooves that may each receive insertion of a protrusion of the seat ring, and which are structured for at least rotational displacement about the received protrusion as the end cap is rotated between locked and unlocked positions relative to the seat ring. The end cap may also include an opening that accommodates the passage of a fluid to a filter element. The filter element, which may be coupled to the end cap, may be adapted to remove particulate or contaminate from the received fluid.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: August 17, 2021
    Assignee: Donaldson Company, Inc.
    Inventors: Jason Wells, Aaron Hoeg
  • Patent number: 11077391
    Abstract: Disclosed is an automatic flushing type pre-filtering device, that includes: a valve head set, a filter cartridge set, a movable rod piece, and a drain valve set. The filter cartridge set includes: a cylinder body; a filter cartridge, disposed in the cylinder body, the filter cartridge includes a filter net rack and a filter net disposed on the filter net rack. A first chamber is formed between the filter cartridge and the cylinder body, and a second chamber is formed inside the filter cartridge. The movable rod piece is provided with a hollow portion inside, and the movable rod piece is disposed in the second chamber. A water separation piece is disposed between the movable rod piece and the filter net rack. A plurality of through holes are disposed on the movable rod piece corresponding to a position of the second chamber.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 3, 2021
    Inventors: Feng-Shun Zhan, Bo-Huang Liu
  • Patent number: 11071810
    Abstract: A method for treating dialysate solutions used in dialysis wherein dialysate is treated in an early part of a dialysis treatment session by external infusion of bicarbonate solution into the dialysate circuit to eliminate the need for bicarbonate requirements in concentrates used for preparation of precursor dialysate (priming) solutions and/or for a solid bicarbonate layer in a sorbent cartridge. Dialysate is treated in a latter part of a dialysis treatment session by introduction of sterile dilution water to reduce sodium concentration in the dialysate. The method provides a more efficient and reduced use of dialysate fluids, electrolytes, sorbent cartridge materials, equipment scale, or any combinations of these, while maintaining purity standards and applicable physiological ranges for bicarbonate, sodium, and other dialysate solution components over the course of a dialysis treatment session.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: July 27, 2021
    Inventor: Stephen Merchant
  • Patent number: 11065580
    Abstract: According to the present invention, even when a high recovery ratio operation is performed, the influence of concentration of ingredients to be separated in the feed fluid can be reduced, the concentration polarization can be prevented by increasing the turbulence effect on the membrane surface, and the fluid permeation performance and the separation performance of the separation membrane element can be maintained.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 20, 2021
    Inventors: Yoshiki Okamoto, Akshay Garg, Kentarou Takagi, Hiroho Hirozawa, Tamotsu Kitade
  • Patent number: 11058996
    Abstract: An object of the present invention is to provide a porous hollow-fiber membrane satisfying both high strength and high pure-water permeation performance and at the same time, having high bending resistance. The present invention relates to a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane and when a photograph of a cross-section parallel to the longitudinal direction of the porous hollow-fiber membrane is binarized into a structure portion and a void portion, the following 1) and 2) are satisfied: 1) a proportion of an area of the void portion is from 20 to 50%, and 2) a value obtained by dividing a total of peripheral lengths of the void portions by a total of areas of the void portions is 2.0 ?m?1 or less.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 13, 2021
    Inventors: Takaaki Yasuda, Masayuki Hanakawa, Kenta Iwai, Toshiyuki Ishizaki
  • Patent number: 11052350
    Abstract: The invention relates to a method of determining a permeation property of hollow-fibre membranes wherein the permeation property of the hollow-fibre membrane is determined on a hollow-fibre membrane bundle which has been introduced into a housing and has terminally open hollow-fibre membranes at a first end of the hollow-fibre membrane bundle and terminally closed hollow-fibre membranes at a second end of the hollow-fibre membrane bundle. The invention more particularly relates to a method of determining the ultrafiltration rate and/or the ultrafiltration coefficient of hollow-fibre membranes.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 6, 2021
    Inventors: Elmar Grausam, Ingo Fehr
  • Patent number: 11052336
    Abstract: A filter device allows avoiding liquid and dust before filtration to flow out to a tank during replacement of a filter element. A case includes a first tubular portion and a second tubular portion positioned with a lower side of the first tubular portion. The second tubular portion has a diameter smaller than that of the first tubular portion. In a state where the filter element is provided inside the case, a tubular portion of the filter element abuts on the second tubular portion. A part abutting on the second tubular portion of the tubular portion is absent of a hole. A part without abutment on the second tubular portion of the tubular portion has a plurality of holes.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: July 6, 2021
    Inventors: Nobuyuki Kitajima, Mitsuhiro Yamaguchi
  • Patent number: 11052338
    Abstract: Systems and methods of filtering particulate matter from a fluid are provided. In one exemplary embodiment, a system for filtering particulate matter from a liquid comprises a filter having a filter housing, inlet and outlet ports, and compressible filter media with synthetic fibers. Further, the filter media is disposed in the housing between the inlet and outlet ports and is operable to filter particulate matter from the liquid. Also, a pressure difference between the inlet and outlet ports with the filter media disposed in the housing is no more than four pounds per square inch differential. In addition, the system includes a pump that is operationally coupled to the filter and operable to move the liquid through the filter media with a flux rate of at least eighteen gallons per minute per square foot of the filter media while operating at less than one electrical horsepower.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: July 6, 2021
    Inventors: Kirk S. Morris, Chris Disher, Dylan Morris
  • Patent number: 11045752
    Abstract: A manifold assembly and a method of engaging a filter capsule in the manifold assembly are provided.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: June 29, 2021
    Inventors: Peng Sun, Kurt E. Brown
  • Patent number: 11045790
    Abstract: A stacked sorbent assembly for use in sorbent dialysis. The stacked sorbent assembly contains two or more interchangeable sorbent pouches that allow for fluid to freely pass into and through the sorbent materials, while keeping the sorbent materials inside the sorbent pouches. Any of the pouches in the sorbent cartridge can be reused and/or recharged.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 29, 2021
    Assignee: Medtronic, Inc.
    Inventors: Martin T. Gerber, Christopher M. Hobot
  • Patent number: 11040299
    Abstract: A filtration system is disclosed, which comprises a filtration-element within a filtration chamber, and a valving device located exteriorly to the filtration chamber, for reversing the direction of fluid-flow through the filtration-element for backwashing. The valving device thus functions as a common valve for handling both filtration and backwash. The common valve is based on a linearly-movable plug located inside a valve housing which is communicable with the filtration chamber, with a source of fluid to be filtered, and with evacuation port for backwash fluid, through three respective openings in the valve housing, and is characterized by an uninterrupted bend-free flow-channel extending at least from exteriorly to an inlet opening of the valve housing, to the body of the filtration-element whenever the common valve is in a filtration mode of operation.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: June 22, 2021
    Inventors: Ra'anan Ben Horin, Kfir Atias, Alex Zendel
  • Patent number: 11033838
    Abstract: A filter element (1), with a preferably multilayer structure of a filter medium (3), in pleated form has filter pleats (5, 7) of different pleat heights (h1, h2). The filter pleats (7) with a first pleat height (h1) oppose the filter pleats (5) lower second pleat height (h2). The filter element has a throughflow direction for fluid to be cleaned away from a dirty side to a clean side (R). The transitions arranged adjacent to the inner side all conclude along a fictitious circular cylinder (9), which penetrates the filter medium (3) coaxially to its longitudinal axis (LA).
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: June 15, 2021
    Inventor: Timo Lang
  • Patent number: 11027227
    Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 8, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Christian Thalmann, Robert Hasenfratz, Fabian Wagner, André Roesgen, Frank Pflueger
  • Patent number: 11014095
    Abstract: A magnetic filter for a central heating or cooling system comprises a pipe having an inlet end and an outlet end, and a filtration portion between the inlet and outlet ends the diameter of the filtration portion of the pipe being greater than the diameter of the inlet end of the pipe and also greater than the diameter of the outlet end of the pipe, and a magnet assembly adapted to be attachable to the pipe, around an outside surface of the filtration portion of the pipe, and movable relative to the pipe from a position close to the pipe to a position more distant from the pipe.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 25, 2021
    Assignee: ADEY HOLDINGS (2008) LIMITED
    Inventor: Simon Downie
  • Patent number: 11014833
    Abstract: An energy-saving desalination system, used for obtaining a salt water from a salt-water source and desalinating to generate a fresh water, and the system includes: a salt-water magnetizing device disposed at an intake for magnetizing the salt water to generate a magnetized salt water; a salt-water filtering device coupled to the salt-water magnetizing device for filtering the magnetized salt water; a salt-water preheating device coupled to the salt-water filtering device for heating the magnetized salt water to reach a middle temperature; a salt-water reheating device coupled to the salt-water preheating device for heating the magnetized salt water to maintain in a higher temperature range; a nebulization device coupled to the salt-water reheating device to nebulize the magnetized salt water having a higher temperature into a mixing fog; and a condensing device coupled to the nebulization device to extract a fresh water from the mixing fog.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 25, 2021
    Inventor: Lin-Song Weng
  • Patent number: 11000788
    Abstract: A filtering funnel assembly has an outer body having a plurality of panels. A first one of the panels is joinable to a second one of the panels to define a funnel. Each of the plurality of panels including a top edge and a bottom edge, the top edges define a funnel inlet and the bottom edges define a funnel outlet. A liner is nestable within the funnel, the liner has a top portion forming an opening and a bottom portion. A portion of the liner is configured to attach to a portion of the funnel. The liner nested within the outer body enables a fluid to enter the fluid inlet of the funnel and the fluid inlet of the filter liner and to pass through the bottom portion of the filter liner and the fluid outlet of the funnel.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 11, 2021
    Assignee: S&S CONCEPTS
    Inventors: Theodore Salani, Robert Salani
  • Patent number: 11002373
    Abstract: An apparatus that treats salt-containing water by reverse osmosis, in which the salt-containing water is separated into a permeate stream and a concentrate stream, includes an inlet for the salt-containing water; an outlet for the permeate; an outlet for the concentrate, and a reverse osmosis device, wherein the inlet and the outlets are integrated into a base unit adapted for installation in a positionally fixed manner, and the reverse osmosis device is an exchangeable unit detachably connected to the base unit.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 11, 2021
    Assignee: BWT AQUA AG
    Inventors: Marc Fink, Jürgen Johann, Mathias Schwaiger
  • Patent number: 10995315
    Abstract: The present disclosure is an algae separating device configured to separate algae from an algal solution in which algae are suspended. The algae separating device includes: a metal screen having a main body and a plurality of through holes passing through the main body from a front face to a back face; and a spraying device configured to spray the algal solution toward the front face of the main body.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 4, 2021
    Inventors: Hiroshi Tanaka, Jun Muto, Yoshiaki Matsuzawa, Norimitsu Kaneko, Yuko Yoshida